JPH10213108A - Shield attachment method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shield attachment method that can easily obtain inexpensive functional base material and facilitate mass production. SOLUTION: In functional base material 10 composed of a shaft part 12, a head part 14 or a hollow body part 14 so as to fit a sheet metal part 52 particularly in a liquid-tight state or a gas-tight state without piercing or boring the sheet metal part 52, the head part or body part 14 has at least one undercut 20 in either a face facing the sheet metal part 52 or the outer periphery of this facing face, and this undercut 20 is formed in a joint area to edges 38, 42 formed to cooperate with a die button 60 formed to be hook-engaged with the undercut 20 during insertion of the base material 10. A method of fitting the functional base material to the sheet metal part 52, a component assembly, at least one die button and a setting head are disclosed and claimed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a shield attachment method, and more particularly to a liquid-tight and / or gas-tight attachment of a functional material having a head and a shaft.

[0002] With respect to the sheet metal, the material does not penetrate the sheet metal, but is fixed to a sheet metal portion for transmitting an axial force, preferably for transmitting a torque. further,
The present invention relates to a functional material, and more particularly to a component assembly including a functional material and a sheet metal part, and also relates to a die button and a head setting for use in a method of attaching the functional material to the sheet metal part.

[0003]

BACKGROUND OF THE INVENTION Particularly in vehicle construction, an absolute liquid-tight and preferably gas-tight connection is often required between a sheet metal part and a functional material having a shaft part and a head. As an example, the begs represent functional material that is provided in the floor area of the vehicle and to which the carpet is to be fixed. water,
For example, water entering from the road must be prevented from climbing through the capillary gap created as a result of perforation of the sheet metal during installation of the functional material, and will lead to corrosion of the sheet metal or functional material. Or carpets suffering from rising fog.

[0004] Liquid-tight and / or gas-tight connections to the sheet metal part or metallic coating of the sheet metal part are possible with very positive process control using the known piercing rivet bolts. is there. However, mass production of the production department at ideal cost is not possible in this way when the tool wears out during long production and when the sheet metal suffers from the transformer.

Because the coating is often damaged during the insertion process, it is particularly difficult to attach the element liquid-tight or gas-tight to sheet metal, one or both, with a plastic, foil and / or paint coating. And a capillary gap is created. Further, loosening the connection is not what is expected and may lead to unexpected caps during subsequent heat treatments, for example when used for application in a heated room.
It reaches ilarygap.

[0006]

SUMMARY OF THE INVENTION Absolute liquid tightness and / or
Alternatively, a material whose gas tightness is actually welded is easily connected by butt connection to the sheet metal surface. To this end, the preambles of claims 1 and 9 take into account such prior art. However, the use of functional materials that can be welded disturbs the process of sheet metal processing, so during sheet metal processing it cannot be directly harmonized with modern methods and has been replaced by presses,
That is, different steps are shown. The heat generated during welding is, of course, often disturbed as the properties of the sheet metal component are locally reduced. The use of a welding process on coated sheet metal is particularly difficult because the coating is locally damaged by the glow welding process. For sheet metal parts provided with a plastic or foil and / or paint coating, it is difficult to ensure an electrical connection between the sheet metal part and the material during welding. When this is achieved, of course, partially toxic gases are released due to the processing heat.

[0007] It is important in some cases to connect a functional material in a hollow body part, such as a nut material, to a sheet metal part without any gas or liquid that can pass through the sheet metal part in the hollow material. For example, such a requirement arises during the construction of a vehicle or an injection molded part having an insert such as sheet metal, wherein the injection molded component cannot penetrate into the screw through the sheet metal part.

It is an object of the present invention to make the method and / or the functional material effective, at least the component assembly in a connection which is essentially liquid-tight and preferably gas-tight, ensures that the functional material and the sheet metal The sheet metal component includes low heat without damaging the coating of the sheet metal component, and the desired appearance features of the component assembly no longer exist. In addition, the method is not complicated for mass production and has a favorable price.

[0009]

In order to achieve the above object, when a sheet metal part is connected to a head by a fitting method or when a hollow material is used, the sheet metal part is set to a set head. The material is connected to the sheet metal part by a connection process in such a way that the sheet metal is connected without perforating the sheet metal by the action of the force between them. The setting head guides the functional material and is arranged on one side of the sheet metal part, and the dice button is arranged on the other side of the sheet metal part.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In all the drawings, the same members or members having the same functions are denoted by the same reference numerals. Further, in all the drawings in which only the right half of each embodiment is shown, the left half is designed as a mirror image object with the right half, and is omitted for illustration.

FIGS. 1 and 2 show a functional material 10 having a shaft portion and a head portion 14. As shown in FIG. 1, the shaft portion 12 has a screw 16. However, this is not necessary for the shaft. As shown on the left side of FIG. 1, the shaft portion 12 is, for example, a cylindrical shaft 1.
7 can be easily realized. The shaft part is a functional material 1
It can be created in any way, depending on the material that works with 0.

[0012] The head 14 of this material is hollow-shaped, ie has a cavity 18 and is described in German Patent Application 195
304666.7 (European Application 96113103.4)
1) in the lower region of FIG. That is, the undercut 20 is
Are formed regularly around the center line 24 by wedge-shaped recesses arranged in the end face 22 of the base, the wedge-shaped recesses being produced by a correspondingly shaped cold head tool.

As shown in FIGS. 1 and 2, these wedge-shaped recesses 26 have the greatest depth of entry into cavity 18 and merge into the center of circular end face 22 within the end face.
The functional material has a circular contact surface in an area outside the end face 22. Nose 2 replaces wedge-shaped recess
8 to define the narrowest part of the cavity 18.

In a deviation from the nut blank according to German Patent Application 195304666.7, the head of the functional blank of FIG. 1 projects from this base surface in the center of the base surface of the cavity 18 and in the direction of the end face 22 of the head. Has a ring wall 30. However, the ring wall has a nose 28
Are selected to end before reaching the narrowest point of the cavity 18 formed by. The ring wall 30 has its own planar end face 32. This planar end face 3
2 is a recess 36 at the center of the ring wall 30 through the room 34
Melts in. Radially outward, the planar end surface 32 of the ring wall 30 melts into the cylindrical outer wall 40 of the ring wall via an edge 38.

As shown in FIG. 1, the head has an outer peripheral edge 42 on the end face 22 and an outer peripheral edge 46 on an end face 44 adjacent to the shaft portion 12.

As will be described in more detail in turn, the undercut 20 allows a mated connection with the sheet metal such that the functional material is pulled out of the sheet metal portion in the axial direction with high force. Recess 26 and nose 28
The area 48 between them forms an undercut which provides security against rotation and is provided with its sheet metal material.

FIGS. 3 and 4 show another example of the functional material shown in FIGS. 1 and 2. The nose 28 is a ring nose 28 extending to the outer periphery.
And the wedge-shaped recess 26 is replaced by a conical recess 26 extending in the outer peripheral direction. Since the ring nose 28 and the ring recess 26 can no longer function as a security against rotation, the axial groove 50 is provided in the lower region of the outer periphery of the head 14 and, as will be described in more detail later, Ensure safety.

The functional material of FIGS. 3 and 4 is formed as a cooling head by a substance driven outside of the conical recess 26 used to form the ring nose.

FIGS. 5 and 6 show a functional material 10 to be attached to the sheet metal part 52, similarly to the embodiment of FIGS.
3 shows an attachment.

As shown in FIG. 6, the sheet metal portion 52 connected to the head 14 of the functional material has the shape of a sheet metal panel before the functional material 10 is inserted. For example, the sheet metal 52 indicates an area of a preformed recess in the sheet metal portion. Functional material 1
0 has a cylindrical housing guided by a setting head 54 and biased by a spring 58.

As is known during sheet metal processing, the functional material 10 is connected to the sheet metal part by the press and by the cooperation of a setting head 54 having dice buttons. At this point, the die button 60 is received on the lower tool of the press, and the setting head 54 is mounted on the upper tool of the press or on the center plate of the press. There are other possibilities for attachments. For example, the die button 60 is mounted on the intermediate plate of the press and the setting head 5
4 is attached to the upper tool of the press, or the reverse device is releasable when the dice button 60 is attached to the upper tool of the press. The use of a press is of course not absolutely basic. As an example, the device is known that the dice button and the setting head are performed by a robot, and the relative movement between the setting head 54 and the dice button 60 in the direction of the central axis 24 is a force from the robot itself or an external force. Is achieved by either of

As the device is devised, at the beginning of the closing movement of the press, the resiliently biased housing part 57 clamps the sheet metal part 52 between the end face 62 and the die button end face 64. The sheet metal part 52 can no longer slip on the tool. During a further closing movement of the press, the end face 66 of the plunger 56 contacts the end face 44 of the functional material 10 and presses the other side of the head 14 facing the shaft part relative to the metal sheet part 52, and the die button Pressed by closing the force of the press in the annular recess.

The die button 60 has a cylindrical projection 7 having a cylindrical outer wall 74 and a conical end face 76 at the center.
2 and a ring nose 80 through a ring recess 78
Blends into While the tool is closed, press the dice button 60
End face 76 deforms the sheet metal material into cavity 18 and partially pushes the material into undercut 20 formed by nose 28. Closed pha
During the se, the conical end face 76 of the conical projection 72 displaces the sheet metal radially outward and, at the same time, deforms the ring wall 30 through the sheet material by the spreading movement of the ring wall 30, And push the material into the undercut 20 in the same manner.

FIG. 6 shows the state after the setting process, and it is clear that the connection is made in the area of the undercut 20 between the sheet metal part and the functional material. Due to the closing movement of the tool, the sheet metal material is drawn into the recess 20, engagement is achieved and rotational security is achieved. However, the sheet material is in the region 4 between the nose 28
8 to provide security against rotation, not shown. It is particularly important that the sheet metal portion 52 is not punctured at any point by the head of the functional material 10. That is, the sheet metal portion 52 forms a continuous film that protects necessary sealing.

As shown in FIG. 6, for example, the planar inner end wall 64 and the cylindrical inner peripheral wall 8 of the die button recess 68 are formed.
4 and between the vertical wall 84 of the die button and the horizontal planar base surface 88 of the recess 68, and in the region of the ring nose of the recess 78 and the cylindrical end face of the cylindrical projection, all of the formation of the die button. The rim is enclosed. The transition between the base surface 88 of the recess 68 and the cylindrical side wall of the cylindrical projection 72 need not necessarily be enclosed, but is typically enclosed for strength. In this transition region, a free space 90 exists after the connection has been made. A further free space 92 is adjacent to the ring wall. These free spaces are necessary because they are filled to some extent according to sheet metal tolerances and sheet metal flow, and these spaces may be completely filled.

The transition of the lower end face of the functional material in the region of the nose 28 and the transition from the undercut 20 in the base plane of the cavity 18 and the transition of the lower end face of the functional material at the edge of the ring wall are formed as forming surfaces. Is done. In such a method, the damage of the sheet metal portion 52 is prevented, and the latter results in melting.

After the connection according to FIG. 6 is completed, the sheet metal part 52 has an inverted pot shape in the center of the base area of the pot, rather than receiving the head 14 and the functional material 10 partially. Do not have a recess. Here, the sheet metal material was pressed into the cavity 18 in the head.

FIG. 7 shows that a pot-like enclosure of the head of the functional material 10 by the metal sheet 55 is not necessary. In the embodiment of FIG. 7, the dice button does not have a recess 68, but rather the base surface 88 of the dice button extends to the radially outermost side of the dice button, forming the end face of the dice button. However, the dice button 60 of FIG.
Has a cylindrical projection 72 in the center region with a central projection having the same shape as the cylindrical projection 72 of the embodiment of FIG. The sheet metal part 52, which should be understood as a planar sheet metal part prior to the attachment of the functional material 10, has at least the set head area and the biased end face 6 of the housing 57.
It is clamped in the head area between the end face 2 and the end face 64 of the die button. Otherwise, the functional description and design description of the device for the embodiment of FIG. 7 is the same as that of the embodiment of FIG. 6, and the explanation of the reason need not be repeated here.

FIG. 8 shows another embodiment of the functional material 10 in which the cavity 18 is formed as at least an essentially cylindrical cavity space and the ring wall 3
0 is a cylindrical outer surface 40 projecting from the base surface of the cavity 18 and melting into the planar end face 32 through the rim 38.
As a solid cylindrical projection.

The transition from the cylindrical cavity 18 to the head end face 22 is an enclosed design, as shown at 10.

In the embodiment of FIGS. 8 and 9, the cavity 18 is not provided with an undercut. Instead, in this embodiment, an undercut such as a ring-shaped recess 102 is provided on the outer periphery of the head 14. The ring-shaped recess 102 is arranged in a transition region from the end surface 44 to the outer periphery 101 of the head 14, in an outer peripheral region between the ring nose 104 and a lower region of the outer periphery of the head 14 adjacent to the end surface 22, It is separated from the shaft portion 12.

The lower region 106 on the outer circumference of the head 14 has a diameter greater than the deepest point of the ring and, in other respects, according to the embodiment of FIGS. An axial groove 50 is provided.

In another aspect, as shown in FIG. 8, a ring bead 108 resides below the ring nose 104. This ring bead serves as an important roll during the setting exercise, as described below.

In this embodiment, the design of the shaft portion 12 can be selected as needed.

The insertion of the functional material in the embodiment of FIGS.
0 to FIG. 13 are described in more detail. In this embodiment, the attachment of the functional material 10 is effected by means of a setting head 54, which has a cylindrical housing part 57 as in the embodiment of FIGS.
2 has a plunger 56 for pressing against the end surface 444 of the functional material 10 adjacent to the plunger 56.

In a departure from the illustration of FIG. 6, the cylindrical plunger 56 is provided with a projecting outer rim 110 and a ring-shaped recess 112, the plunger 56 being present radially in this outer rim. , Protruding region 11
0 comes in contact with the end surface 114 of the head 14.

FIG. 10 shows that the sheet metal material 52 has the end face 62 of the housing 57 and the planar end face 6 of the die button 60.
During four, it shows how to be clamped at the beginning of the set-up movement.

The die button 60, according to the die button of FIG. 6, has a ring-shaped recess 38 with a planar base surface 88 and has a cylindrical projection 72, here the projection 72 is at the top. It has only a planar end surface 114 disposed perpendicular to the center line 24 and
6 melts into the cylindrical wall of the projection 72.

Similarly, in the deviation from that of FIG. 6, the outer wall of the recess 68, in this embodiment, is not arranged vertically, but rather diffuses in the direction toward the end face 64 of the die button 60. . The transition from the outer peripheral wall of the recess to the end face 64 is formed as a forming edge 18.

FIG. 11 shows a functional material 10 and a sheet metal part 5.
2 shows an intermediate stage of the connection with 2. Planar end face 22 of the head
Pushes the sheet metal material 52 into the ring recess 68 at the beginning of the sheet metal material and moves the groove 50 in the lower region of the outer periphery of the head 14 as a result of the conical outer peripheral wall 84. At the same time, the cylindrical projection 72 leads to a deformation of the sheet metal material 52 in the cavity 18. The end state is shown in FIG.

The sheet metal material 52 has a cylindrical projection 72.
Is pressed into the recess 68 of the die button at this point, and the projection 72 is formed on the end face 11 of the opposite end face 32 of the cylindrical projection in the cavity 18 of the head 14.
The sheet metal material is clamped between the four.

During a further closing movement of the tool, a ring bead 108 has been pressed into the sheet metal material 52 and, in conjunction with the slightly cylindrical diverging outer peripheral wall 116 of the die button 60, a ring-shaped bead 108 is formed. Undercut 1
02 into the sheet metal material. Undercut 1
02, or the corresponding ring recess, is not sufficiently filled to provide a recess for receiving sheet metal material, depending on the actual sheet metal thickness.

However, in this embodiment, in addition to the movements described above, the material of the head of the functional material is deformed while the tool is closed, and the ring collar of the plunger 56 changes the corresponding recess in the head of the functional material. And the end face of the plunger 56 fully contacts the deformed end face 44 of the head. The material pushed by this deformation is
On one side, the sheet metal material 52 is pushed in,
On the other side, it contributes to the movement of the sheet metal material in the undercut 102. The particular design of the end face of plunger 56 is not important in this embodiment. However, it is very useful to ensure the strength of the connection between the functional material 10 and the sheet metal part 52. Of course, it is directly shown here that the connection is achieved in the region of the undercut 102, the sheet metal material 52 being formed between the grooves 50 and the sheet metal material 52 being formed between the grooves 50. The contact with the nose of the head 14 prevents the functional material from being pulled. This security against rotation is achieved in this embodiment, wherein the sheet material is pushed into the groove 50.

FIG. 13 shows that the undercut 10
2 shows a somewhat enlarged final shape in the region 2, but of course shows that the cavity 18 can be provided with a ring nose 28, the undercut 20 rising in this embodiment, making a hook connection with the sheet metal material, It has a ring-shaped undercut shape.

As shown in FIG. 13, the cylindrical projection 30
The forming edge 38 has been deformed by the set movement and the forming edge 38 has been moved radially outward for deformation,
Sheet metal material is pushed into the inside.

The design in the region of the cavity 18 corresponds at least essentially to the design of the embodiment according to FIGS.
It can be seen that the sheet metal material has the shape of a continuous film, resulting in an absolutely shielded connection. All forming edges are of circular design in order to prevent as much as possible damage to the sheet metal material or damage to unwanted coatings in the latter penetration.

In this embodiment, a free space is created in the region of the head and more space is taken up depending on the thickness of the sheet metal and the sheet metal material.

The shape of the dice button for the insertion of the embodiment of FIGS. 3 and 4 is not separately shown. However,
It has the same shape as the dice button of the embodiment of FIG. 6, and the outer ring wall 84 of the recess 68 is slightly beveled to ensure connection with the groove 50 without damaging the sheet metal. I have. However, this conical shape is not affected during the attachment of the functional material according to FIGS.
Not absolutely necessary. However, the advantage of the dice button being slightly conical is that the sheet metal is easily loosened from the dice button while opening the tool.

Finally, FIGS. 14, 15, 16 and 17
Indicates that the invention is realized with a functional material such as a hollow material. 14 to 17, corresponding FIGS.
The same reference numerals as in 12 and 13 are used. Therefore, another description of FIGS. 14 to 17 is not necessary. In these figures, the cavity 14 is in place of the head. Although the deformation is intentionally made to create a narrow portion at the entrance to the cavity material, it is important that the cavity material is not deformed in an unnecessary way during the attachment.
Easy to check. Narrows of this kind are useful, for example, for achieving a snap connection with a correspondingly shaped male part.

As an example of the sheet metal material in question,
ST12 to ST15, DIN16 and ZStE22
Names from 0 to 430 are given. As far as the functional material is concerned, it is possible to use a material in consideration of the material according to DIN 1654 (cold heading steel) for the functional material.

All examples have the further advantage that they are highly protected against tilting and lever ring of the functional material. This applies to the embodiments of FIGS. 6, 12 and 13 with the head 14 clamped between two pot-like areas of the sheet metal part.

[0052]

As the sheet metal part is not perforated during the attachment of the functional material, the sheet metal part is held as a closed membrane and no capillary gap is created between the two sides of the sheet metal part. It is directly possible in this way to make the connection between the functional material and the sheet metal part.
The sheet metal portion has a tensile resistance from the functional material as a connection where the head of the material is disposed on the other side of the sheet metal from the shaft portion. However, sufficient strength of the connection is obtained and is sufficient for many applications, such as for vehicle carpeting, for mounting headlines in vehicles, or for installing brake lines, cables, ramps, and the like.

It is known that the so-called joining process and punch rivet process do not involve punching of sheet metal. In the joining method, the two sheet metal portions are deformed upon hook engagement. However, no functional material or auxiliary material is used here. During punch riveting, auxiliary materials such as punch rivets are used for joining sheet metal parts, and punch rivets do not represent functional material and do not have a shaft part. further,
As an alternative to the punch rivet, there has been known one for connecting a shaft portion and inserting it into only one sheet metal portion. According to these punch rivets, the perforation of the sheet metal part is not necessary and sufficient, and this known method does not allow mass production and liquid-tight or gas-tight mounting.

According to the method of the present invention, there are several possibilities that a fitting connection can be made between the sheet metal part and the head or main part of the functional material. For example, in order to make a shape-locking connection, the head or body part is formed by an open cavity at its end face facing the sheet metal part, and the sheet material is hooked into the undercut by means of a die button.

Such undercuts are disclosed in connection with nut blanks and in the unpublished European patent application 96113103,4. According to the method disclosed in this European application, the sheet metal part is pierced during the installation of the nut by the hole punch, and no watertightness is disclosed. Nevertheless, the method disclosed therein can use the subject matter of the present invention to create a security feature against the formation and rotation of undercuts, which is described in this European application or corresponding application. German Patent Application 19530
466,7 form part of the disclosure of the present application.

Another possibility for forming a locking connection between the head or body part of the functional material and the sheet metal part consists in providing the head with an outer periphery provided with at least one undercut, wherein the sheet material is Form hook engagement. In this embodiment, it is particularly advantageous when the material of the head or body is deformed by the setting head to generate or improve hook engagement.

The method of the present invention, when applied to a sheet metal part, is particularly suitable for a sheet metal part applied to one or both sides.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional side view of a functional material.

FIG. 2 is a plan view of the functional material as viewed from a direction of an arrow D2 in FIG. 1;

FIG. 3 is a front view similar to FIG. 1, but only half of the other embodiment.

4 is a plan view according to FIG. 2, but viewed from the direction of arrow D4 in FIG. 3;

FIG. 5 is a front view showing only the right half of a further functional material similar to the functional material of FIG. 1;

FIG. 6 is a front view showing an attachment of the functional material of FIG. 5 to a sheet metal portion using a setting head and a die button, and showing only one side of a central axis of the functional material in a partial cross section.

FIG. 7 is the same as FIG. 6, but front view of another embodiment.

FIG. 8 is a front view similar to FIG. 1, but showing yet another embodiment.

9 is a front view showing the end face of the head of the functional material of FIG. 8 as viewed from the direction of arrow D9 of FIG. 8;

FIG. 10 is a front view showing a first operation process during installation of the sheet metal part using the setting head and the dice button on the functional material of FIG. 8;

FIG. 11 is a front view showing the latter state of the attachment method started in FIG. 10;

FIG. 12 is a plan view showing an end of the attachment method of FIGS. 10 and 11;

FIG. 13 is an enlarged view of the region of FIG. 13 with possible variations and characterized by section D12.

FIG. 14 is a front view corresponding to FIG. 6, but using a functional material such as a hollow material.

FIG. 15 is a front view corresponding to FIG. 7, but using a functional material such as a hollow material.

FIG. 16 is a front view corresponding to FIG. 12, but using a functional material such as a hollow material.

FIG. 17 is a front view corresponding to FIG. 13 but using a functional material such as a hollow material;

[Description of Signs] 10 ... Functional material 12 ... Shaft 14 ... Head 16 ... Screw 17 ... Cylindrical shaft 18 ... Cavity 20 ... Undercut 22 ... End face 24 ... Shaft 26 ... Wedge-shaped recess 28 ... Nose 30 ... Ring wall 32 ... Planar end face 34 ... Room 36 ... Recess 38 ... Edge 40 ... Cylinder outer wall 42 ... Peripheral edge 44 ... End face 48 ... Area 50 ... Axial groove 52 ... Sheet metal 54 ... Setting head 56 ... Plunger 57 ... Housing 58 ... Spring 60 ... dice button 62 ... end face 64 ... end face 66 ... end face 70 ... recess 72 ... cylindrical projection 74 ... cylindrical outer wall 76 ... conical end face 78 ... recess 80 ... nose 82 ... transition 84 ... vertical wall 86 ... transition 88 ... base face 90 ... Free space 92 ... Free space 94 ... Outermost edge 100 ... Ring-shaped recess 104 ... Ring nose 106 ... Bottom Part region 108 ... Beat 110 ... Color 112 ... Ring-shaped recess 114 ... End face 116 ... Shape edge 118 ... Shape edge

Claims (31)

[Claims] 1. A functional material (10), in particular, a head (14) and a shaft (12), and a material (10) made of sheet metal (5).
2) A method of mounting, in particular liquid-tight or gas-tight, to a sheet metal part 52 which does not penetrate through but is secured to the sheet metal part against axial forces and preferably torque transitions, comprising: Is connected to the sheet metal part (52) by a connection method based on mechanical deformation. 2. The body (14) of a sheet metal part, either on the head (14) or when using a hollow material.
The sheet metal part is connected without being perforated by the force of the head for guiding the functional material (10), and is connected to one side of the sheet metal part (52) and the die button (60). Is connected to the other side of the sheet metal, the shield attachment method according to claim 1, characterized in that: 3. A head or body (14) is formed with an open cavity (18) at its end face (22) facing the sheet metal part (52) to create a form-lock connection and a sheet. Metal is a dice button (6
0) is hook connected to the undercut 20;
3. The shield attachment method according to claim 2, wherein: 4. A protruding ring wall (30) is provided in the cavity (18) in the region of the base surface, and the ring wall is provided via a sheet material with a die button (60).
4. The method according to claim 3, wherein the sheet material is pressed radially outwardly and presses the sheet material against the inner wall of the cavity (18) above the undercut (20). Shield attachment method. 5. The head or body portion (14) has at least one undercut (102) on its outer peripheral surface and is hooked with a sheet metal material to form a sheet metal portion (5).
3. The shield attachment method according to claim 2, wherein the head and the main body (14) are fitted and connected to each other. 6. Shield according to claim 5, characterized in that the material of the head or body part (14) of the functional material is deformed by the setting head (54), resulting in a hook engagement. Attachment method. 7. The sheet metal part (52) is coated on one or both sides with a metallic coating or a plastic coating or a foil coating or a paint coating, and the forming method is a material (10).
And forming edges (38, 42, 10) in the die (60)
0, 78, 80, 82, 86). 8. A feature providing security against rotation (20, 46, 48, 50) is provided by a head or body (14) or a ring wall or end face or a cavity (18) around the periphery of the head or body (14). ) And wherein the sheet material is provided in features that provide security against rotation (20, 26, 48, 50). A shield attachment method according to claim. 9. A sheet metal part (5) comprising a shaft part (12) and a head part (14) or a hollow body (14), which does not penetrate or perforate the sheet metal part and is liquid-tight or gas-tight.
2) wherein the head or body (14) has at least one undercut (20, 102) at either its end face facing the sheet metal part or in the open cavity at its periphery. ) And cooperate with the dice buttons during the insertion of the material to make a hook connection or undercut (20, 10) in the sheet metal material.
2) A functional material characterized in that it is formed in an area that comes into contact with a forming edge (38, 42, 100) that hook-connects with 2). 10. A head or body (14) having a cavity (18) open at its end face and an undercut (20) formed by a circumferentially extending projection (28) on the outer peripheral wall of the cavity. The functional material according to claim 9, wherein: 11. The head or body portion (14) includes a cavity (18) open at the end face and a plurality of undercuts (20), which undercut project from the outer peripheral wall of the cavity (18) to the latter. Formed by the nose (28) and pressed at the corresponding position against the end face of the head or body,
10. The functional material according to claim 9, wherein the functional material simultaneously provides safety against rotation. 12. An undercut (102) is formed by a ring nose (104) in the outer region of the head or body (14) adjacent to the free end face (44), and the ring nose (14) and the latter are formed. A ring bead (108) formed by a recess provided between the head or the other end surface (22) of the head or the body portion (14) in the region of the outer peripheral wall and extending in the outer circumferential direction has a ring nose (104) and a recess (102). 12. The shield attachment method according to claim 9, wherein the shield attachment method is provided between the shield attachment methods. 13. A method according to claim 1, further comprising a plurality of recesses located between the ring nose (104) and another end surface (22) of the head or body at the outer periphery, each forming a further undercut (102). The functional material according to claim 12, characterized in that: 14. An undercut (20) in which a projecting ring wall (30) is provided in the cavity (18) at its base surface and projects in the direction of the end surface (22) facing the sheet metal part (52). 14. Functional material according to one of claims 9 to 13, characterized in that it is directed in the direction of the end face before the narrowest position of the cavity formed by. 15. Functional material according to claim 14, characterized in that the end face (32) of the ring wall (30) is formed inside by a room (34) or a peripheral edge. 16. An end face of the ring wall (30) is made of a material (1).
The functional material according to claim 15, characterized in that it has a circular, planar surface (32) extending perpendicular to the center line (24) of (0). 17. The functional material according to claim 15, wherein the planar surface (32) melts into the cylindrical or conical outer chamber (40) via the edge (38). 18. The security against rotation (26, 28, 48, 50) is such that the inner peripheral wall of the cavity (18) or the end face (22) of the cavity (18) facing the sheet metal part (52), or a ring. 10. The arrangement according to claim 9, wherein the end is arranged on the end face of the wall or on the outer circumference of the head or body.
18. The functional material according to any one of items 17 to 17. 19. The shaft (12) has a screw (16) or the same shape or an outer circumferential groove or a plurality of outer circumferential grooves or other shapes as the screw, and the selected shape of the shaft (12) is a functional material. 19. Functional material according to one of claims 9 to 18, characterized in that it is connected to a corresponding material that cooperates with. 20. A sheet material (52) made according to one of claims 1 to 18 and comprising a sheet metal part (52) and a functional material (10) according to one of claims 9 to 19 above. ) Is connected to the undercut (20, 102). 21. The sheet metal (52) is connected in a form-fitting manner or in a hook engagement with security against rotation (26, 28, 48, 50) and transmits torque acting on the central axis of the functional material. 21. The component assembly according to claim 20, wherein: 22. The sheet metal part (52) is not perforated anywhere in the mechanical connection area with the head or body part (14) of the functional material (10).
22. The component assembly according to claim 20. 23. A sheet metal part (52) comprising a hollow (1).
Component according to one of the claims 20 to 22, characterized in that it is received in a pot-like manner in 8) and is hooked in a form-fitting manner to the base area of the pot behind the undercut (20). Assembly. 24. The head or body part (14) is at least partially arranged in a pot-shaped recess (70) of a sheet metal part (52).
23. The component assembly according to any one of to 23. 25. A sheet metal part (52) is applied to one or both of a metal coating or a plastic coating or a foil coating or a paint coating, and the coating is not damaged by the connection method, or is combined with the functional material (10). 24. The component assembly according to claim 20, wherein only the position clamped between the sheet metal parts (52) is damaged. 26. A die for use in a method according to one of claims 1 to 8 for forming an attachment according to one of claims 9 to 19 and a component according to one of claims 20 to 25. Button (60)
The end face facing the sheet metal portion (52) extends parallel to the central axis 24 of the die button or the sheet metal portion (5
It has a recess (68) that diverges slightly in the direction of the end face of the die button facing 2) and has a recess (6).
8) the outer peripheral wall (84) is of circular, oval or polygonal cross-section, or has an extended nose and via a lip (82) the planar end face (6) of the die button.
Dice button, characterized by blending into 4). 27. An end face (6) of a die button (60) facing a sheet metal part (52) in a recess (68).
4) and at least essentially has a planar end face, projects through the forming edge (116) into the cylindrical side wall, and the end face (114) of the projection (72) surrounds the recess (68). The dice button according to claim 26, characterized in that it is lower than the end face (64) of the dice button. 28. A recess (68) having a cylindrical projection (72) projecting in the direction of an end face (64) of a dice button facing a sheet metal part (52), the end face (76) of the cylindrical projection. 28) The dice button according to claim 26, wherein the dice button comprises a conical tip and is at least essentially conical. 29. A component according to one of claims 20 to 25 for use in a method according to one of claims 1 to 8 for attachment of a functional material according to one of claims 9 to 19. An annular planar end face (64) for projecting in the direction of the sheet metal portion (52) for forming an assembly.
Dice button having a cylindrical projection (72) surrounded by at least an essentially conical projection end surface (76). 30. The conical end face of the cylindrical projection (72)
Ring recess (78) and ring nose (8
Dice button according to one of claims 28 or 29, characterized in that it melts into the cylindrical side wall of the projection (72) via 0). 31. A functional material (10) according to one of claims 9 to 19, wherein the method according to one of claims 1 to 8 is performed to form a component assembly according to one of claims 20 to 25. A plunger (56) having a stepped end surface (110, 112), and further encircling the shaft (12) and being attached to an end surface (44) of the head adjacent to the shaft (12). A setting head which projects into the marginal area from the opposing central area and wherein the outer marginal area (118) of the plunger corresponds to a corresponding diameter of the head (14) of the functional material (10). Department.